qlge: bugfix: Add missing pci_mapping_err checking.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 718a7bd0cd1a..c6ab6a493e70 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -963,6 +963,11 @@ static void ql_update_sbq(struct ql_adapter *qdev, struct rx_ring *rx_ring)
                                                      sbq_desc->p.skb->data,
                                                      rx_ring->sbq_buf_size /
                                                      2, PCI_DMA_FROMDEVICE);
+                                if (pci_dma_mapping_error(qdev->pdev, map)) {
+                                        QPRINTK(qdev, IFUP, ERR, "PCI mapping failed.\n");
+                                        rx_ring->sbq_clean_idx = clean_idx;
+                                        return;
+                                }
                                 pci_unmap_addr_set(sbq_desc, mapaddr, map);
                                 pci_unmap_len_set(sbq_desc, maplen,
                                                   rx_ring->sbq_buf_size / 2);